Full-day Workshop on Inspection Methodology of Curtain Wall System

Date, time & venue
2017-05-08;8:45 am (registration) for 9:15 am to 5:45 pm;Room N001, The Hong Kong Polytechnic University, Hunghom, Kowloon


Scope and Objectives
In Hong Kong, there are hundreds of curtain-walled commercial buildings including hotels and office buildings aged 30 years or above.


Curtain Wall System has been prevalent in the construction industry since 1970s and is regarded as a well-engineered structural system, in which its structural framing consisting of mullions and transoms externally affixed to the structural frame of the building is achieved by means of Halfen Channel Embed with original designated locations or subsequent Anchor Bolts due to the mis-alignment or layout amendment of the structural frame. Glass panes are fixed to the mullions and transoms by structural sealants and/or mechanical fixings.


Particular concern is given to the structural performance of structural sealant, in which the designers always regard the 10-year commercial warranty as its structural performance as quoted by the sealant manufacturer. This is misleading in the sense that the life expectancy of the structural sealant is only 10 years.


According to the latest review and test results found by leading structural sealant manufacturer Dow Corning, the mechanical properties of structural sealant are found apparently unchanged under the exposure to weather conditions in Florida, USA for a period of time of over last 40 years.


While there is no specific guideline on the inspection methodology of curtain wall system given in the Code of Practice for MBIS and MWIS and there are intensive aspirations from the industry about the acceptance criteria of prescribed inspection of curtain wall system, a rational methodology in particular the inspection and supervision of repair for defective structural sealant in curtain wall system is hereby devised based on the American requirements and best practice with due consideration of the local conditions in Hong Kong and the region.


Recommendation will be made that the durability assurance of structural sealant can be achieved by conducting test conforming to ANSI Z97.1, in which the sealant is exposed to an energy of 295 MJ/m2 for over 3000 hours to simulate the sunlight exposure in Florida, USA, with adjustment to cater for the local conditions in Hong Kong and the region.


The workshop is tailor-made for the practising building professionals comprising Registered Inspectors, Authorized Persons, Registered Structural Engineers, Technically Competent Persons and façade practitioners to attend.


The HKISC is very pleased to have the renowned overseas and local curtain wall design practitioner and structural sealant experts from Germany, United States of America and Hong Kong to deliver the workshop. Please refer to the attachment for the details of the speakers by clicking the icon at top right corner.


Official Language
English will be the official language.


Registration fees
The registration fee includes a copy of lecture notes, a copy of CPD certificate.


Regular Registration: HK$ 1,200 each for HKISC Members, HK$ 1,500 each for HKIE Members; HK$ 1,800 each for non HKISC/ HKIE Members.
Group Registration: HK$ 1,500 each for group registration of at least 5 people
CPD Certificates: This seminar is recommended for ONE CPD day. An attendance certificate will be issued.


Please send the completed registration form with registration fee to Mr. Sam Chan, HKISC c/o ZS972, Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon by 2 May 2017 (Fax No.: 852-2334 6389). You can download this form on HKISC web (http://www.hkisc.org) or request through emailing to: samchan@hkisc.org. For further information, please contact Mr. Sam Chan above.



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